{
  "manageEntity": {
    "action": "Update",
    "entityId": "656551978",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x171638fc544d10439374e609b1c40890df34e232b9d560fb028e02d6bb9d4444",
    "signature": "0xed60c431a3ae5a3a7035b0a9086f100f348b90227e3659c93ca0e22a0acb9b932a4305363481a57477c4cbda4ab2e9e67df52d7e60cb5841ce36c456e98e6c5e1c",
    "signer": "0x88A14FF7b0cfc181D4094B41A62874f86b27BD11",
    "userId": "656551978"
  }
}