{
  "manageEntity": {
    "action": "Update",
    "entityId": "790717795",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x55c8aef9aa014ab4f079f8706b20e574a3387603041c9ba13abd5c713c82737c",
    "signature": "0xcf334261fe0cef62bb9ebfd2470efbb4c48d362548b6ef7028249bc9ad488f5565016ddc78bbcf064692818884da878f066b1d16854ca4c4a1d09f3ef5ec448f1c",
    "signer": "0xb15e0969937058c681E67343137f40F72F50d99F",
    "userId": "790717795"
  }
}