{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "101990",
    "entityType": "User",
    "nonce": "0x2a6f7a9b1811e3e3ad2ae11e2d79c068519b80de29678e8ffeb1e7cdeac26312",
    "signature": "0xc39e783054102148e2f4a360f51d42206a1280a5bb1fdef7e15750405a6367d60f2dcf324d4e593ebf842bb84af1b8a408cda9796b2b7912da90d4c5515140611c",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}