{
  "manageEntity": {
    "action": "Update",
    "entityId": "733747072",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0f0f03baaeab501939e9f66d125d87616bd453ba17c638a12d35b3918b7bfa27",
    "signature": "0xeaf34a2e15304becd07a6cece2d91536e02c44dffec56215a9147ec081d15d6e4e1afe2c640138a5ce0df936e0b55ee8236836daf0b2e7abf51506e28cef59de1b",
    "signer": "0x850aA0456b0ef795D5D345834cb661E8c083574F",
    "userId": "733747072"
  }
}