{
  "manageEntity": {
    "action": "Update",
    "entityId": "858465138",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa14b5ae02bd1ad80bd6d00123caa977dffaa5f3ca46a1524f68506b36c0f1c59",
    "signature": "0xd61b81e89510debc4bc0df625ed41fd6618ee31bc9cda567e2751e2974c4ce7e2e9dd978a740340d4bf76b93f4c6cf2b0a5577bbb6d655e71140312bfe69a7591b",
    "signer": "0xb11A87421a60283b875d2F958D27356167224eF2",
    "userId": "858465138"
  }
}