{
  "manageEntity": {
    "action": "Update",
    "entityId": "28229481",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8b0c7f5f4f9bb0645b7004f518e9302a2e2fd00a9f94ee050399f4830af30968",
    "signature": "0x549f36b0c627b61d6d12297a7afa4370fbe14304d902c3e17ce700940ba3906f7ceeb60ef566ddcd639795808052a36699981db1449182ef934df34e16331df51c",
    "signer": "0x3252C4c7Ace8872bFf0E36771692c80c2E8eD894",
    "userId": "28229481"
  }
}