{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "809803",
    "entityType": "User",
    "nonce": "0xbd653b8d393db8108fb53f78239e114bd9baf7a9009be1087d7f0614638c7291",
    "signature": "0x55b23a53d5c8e0ba48ab38141cf25b1e870fa98e2bab4db8a4645eed1986081c34038d71bff607493f9cb0809e666b715f89d4b5b9d46a75f0fdd9057aa0ce531b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}