{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37947",
    "entityType": "User",
    "nonce": "0xa7879505a51c9dfdf82b61b106e6f017cd773955e7ba31d80e7e372a785e1d72",
    "signature": "0x9cd17d4bb084e64dbb81ea1122c43a0392868642d01068213d5f1955680a661b50437f8995d6f7533e2a2674590114ef5cc836a6ab65f19c6537d5d0ca56e06e1c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}