{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb73a61f11c259279771adb752a68aafcaefc9f9bd3401e3c3e9769714b9b2c86",
    "signature": "0xd4f5155be805ca7d0c6b4aea627d9d3c1190c97e2abfe750f82c897de72714950457728bb9c82651c34d6d7fa98682bf62787798abf8fc36442cef00a67beb101b",
    "signer": "0x03D3E62a23916C675244506a088A380b18917DE5",
    "userId": "92288781"
  }
}