{
  "manageEntity": {
    "action": "Update",
    "entityId": "934412570",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x283864f6662cdbc0b4e35d507fb8b0aa137581ee0cc263c23ffe4bb313f33af6",
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    "signer": "0xFC86EB7E5A77f6a03Fb8D68aD3a44A9cc277ef8F",
    "userId": "934412570"
  }
}