{
  "manageEntity": {
    "action": "Update",
    "entityId": "309071067",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x53d5ac8c27fa2ec35526c2a336445e1bc9157f1ae0140a0355b137f122fb972f",
    "signature": "0x2f0b591eb02e3765ec1b70aa0e08ed2b111c226e78800a78779c4a286d53fcac18e303e91bf3654e5ae0b0a2c7b5ff0351297861d1567e1001edc7354302e8251c",
    "signer": "0xD64b2D9033e011ECfbF35b2D18B86a439b9ABBD4",
    "userId": "309071067"
  }
}