{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe9105812cafbc8d32186735c3c6484e21dd1485a9dfcf6f6bb123f21ab7b7b8a",
    "signature": "0xb285875958dcb532d6eee3728434bb8c979ae4bde428e36e482883808894a1974fb53199ea6f49a8744581909b86b39e63b96b7f0694d61d949e7aabab8471f71c",
    "signer": "0xBfbC3577d22886ae4FBa5B2c3b5b9B3504397014",
    "userId": "683891068"
  }
}