{
  "manageEntity": {
    "action": "Update",
    "entityId": "396675944",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x44f6d489afd6d59d6be04cab2a84b1a4d982a662ef111ebffa296574ab431f49",
    "signature": "0xc2cfdbe1627d8378f351e7481a7541b269907b2140bee44d01cc3253f44aa95e0c9a61175b7ea2de547778f43369d49a9ee048cc90332e084285dbadab5e11aa1c",
    "signer": "0x986552eE66531A096f52799Ed5f110a9894667Ed",
    "userId": "396675944"
  }
}