{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5f25c8e77cd4e297550dc5c6002b857a602b01f2c9dc9b27ec2f6337030c4fc4",
    "signature": "0x2537850163e7ff66c36a393d78d433d517283f4e498d2b3f2e950bda677ff5e5105c1ad45cbf9130d00c0bc4fda1730f012a98746076fc844a6cc92ea0ab03161c",
    "signer": "0x18Fc13Cf0C3d527f2Cc0b178b0274A0ADb45E3C7",
    "userId": "81067260"
  }
}