{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4e0fb65c8601578d36b12b31216fb720ee640b15c79a4019e6c1bfc9c3054917",
    "signature": "0x68987e5c3ec2fd650766710b46a54ab59a709581df50a8917a1d65a343453ed47d7a6a33ef1393e48b01408270dc024a02063782f7c81c211ebcfdb361fa17071b",
    "signer": "0xAE0EaA0d17FA83111006aA535A0D0E3ba54400a5",
    "userId": "634621182"
  }
}