{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x57fef6f65fa7dfc7b0e27edb2f1bc57e80ce93161efe3c16f7558e7eee9e9af7",
    "signature": "0x45cebad77e29cb1d321c8ef3a99c1a1d6a5d861557cc8724723f64cb5f9373807a73c3be828a57689c01616932ffc08ecd924ed8b48231ba454f4f7927f0b02d1c",
    "signer": "0xcCAe7e3D3B788aec9A4C39797101F323f7E87E55",
    "userId": "842043513"
  }
}