{
  "manageEntity": {
    "action": "Update",
    "entityId": "628680085",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf9ec0c3ae40d02c9b1b9aef793f208cb490de50cf95902bbd7bc35496bd45a12",
    "signature": "0xadd1762fd67d6a301cceb5d3ff85afa0b48021e3e6860e7e762d334f7f4ea5ba2f1b77733fc365d463256cf80d7595d14fe8d12c5962b4f370ab711b2e7e87da1c",
    "signer": "0xD3a9fd3A65024c2c55f4E5A340E39C9CDd6BB17c",
    "userId": "628680085"
  }
}