{
  "manageEntity": {
    "action": "Update",
    "entityId": "279084195",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieracswmtfid3srsv4xxjqrfopq25cddzpkpir6pbhujxtzea7fqgoxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":743920324}]}}}",
    "nonce": "0xe616947150b7d622af2d10ec71617d2d557feabe0598898e2e2facfbf6010251",
    "signature": "0xcae43b8d289efe280a077db187ab9e01461b52e2538834635f1611f3f2b415c84cdfffc8b6b2a840d13f968b7f014c51eab6fda30066e02bab39e1c5537012471c",
    "signer": "0x47876366ACBb20DaAC408C422AE6f75Af3969470",
    "userId": "279084195"
  }
}