{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xa187371dcbd622accd26926f779cf7d2d6e9343923fa200720c12aeb6689e3bd",
    "signature": "0xcd62052c8caaf28a15db94240a4d21ab4741517da36d7b26a27ef30f833d18046de1eca9889a5e6f4299af330c973cafc784bd46f886cf5ee91c3826ae9bca311c",
    "signer": "0x4DDd196F82e57869E706Fd10381a359418B104Bb",
    "userId": "585727851"
  }
}