{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0xfc3477af995f59d3107e7e14cb448d99491bca8520bd9e23aa99d12ef3115560",
    "signature": "0xacf6e6026d93392aa54e4ace827276ab14a581b2d0be4ab1efd8d2515acd5b340802d0c8e5450a34611a7147c2be14d5a8c130de19eab19eb228d75ed4925a091c",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}