{
  "manageEntity": {
    "action": "Update",
    "entityId": "916818941",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5d76e900c2d784b6e193dd4dbd6a7f7ad4927a70e75445739c62958553a92cc7",
    "signature": "0xcd0f860761f46c24e4f10a80aeffdf2b2c799b4d55300275587b4142859bf2263929998fc93c6731e6d627f709009d54e0e02263643ea7f75d9254cac73e8a2b1b",
    "signer": "0xCea1855A880e9478407CC9843e16081D4a9f0671",
    "userId": "916818941"
  }
}