{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "914738347",
    "entityType": "User",
    "nonce": "0xa6f248819a8bc9250cdd288ce6abef649002f8d6115de696cf02ba8efe13a0fe",
    "signature": "0x1ad36b0b7bfd42dc15aaa5af44eb2600e248b3d380dc531d37316511b0eeeb2430a09c93b7967f5750fb3b103df86a85d132c523004dd376784a0dfcfe6b34b91b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}