{
  "manageEntity": {
    "action": "Update",
    "entityId": "196227108",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb03fbd7ae05fd680c836a6c1aafd42d4ffb1985a7f531b7f5fe84a5d8a99cd60",
    "signature": "0x6d7b8e0d2138b1ec2259e4e78bf5650261de9911f01318e6b3edbef47e1246f81cd38a19311f977dd5c8daee0d7c2ae3f1fb41c718eed04b676699d58dfda9b11b",
    "signer": "0x7B6f0bacDF95a163C55115144e11510dC1f4A036",
    "userId": "196227108"
  }
}