{
  "manageEntity": {
    "action": "Update",
    "entityId": "976310341",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd5ce7ab7b423716614a5099ba19c08c7197e80521b7a2b239f1fcd4b102f9100",
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    "signer": "0x7A83d995A610C8d6B07E7371618bC2FcaE2442d7",
    "userId": "976310341"
  }
}