{
  "manageEntity": {
    "action": "Update",
    "entityId": "672133271",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierafnsyydssray3djdbgzucs7jgxkqshgngmr7a6bcjn3jxszzscmeq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1170700276},{\"type\":\"playlist\",\"playlist_id\":5419},{\"type\":\"playlist\",\"playlist_id\":1181547984}]}}}",
    "nonce": "0xa248f1e69d67c614d97403a93eaa0d2e1cb12893b3a1d7cb5943f07623c4ef17",
    "signature": "0x95cc1943abab65a18f99e1a08b5bcb488c06247a02567afc3663f06c5d9fbe84346e9b73281f5248eaaa2bae6d0d5274b11c558b87338b7b73b82ac1934fb2531c",
    "signer": "0x9DdE377c723409FF26023CF1B05dDc885a25BfbD",
    "userId": "672133271"
  }
}