{
  "manageEntity": {
    "action": "Update",
    "entityId": "954818868",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x59872bfa9fc402506de84c91c317395e3775fbb6f33eaae10cec3abf7060c567",
    "signature": "0xe2728ed8fd4014207852d81c6aaa1bd81871f4afbf23d4ca6c123cac1b06553064aa23b6d2d99930788fec57d2c574e9967b2f8d9d7628edb2db751e9dea86ae1b",
    "signer": "0x60a876F6de155a67B3fac79086CF83F792066242",
    "userId": "954818868"
  }
}