{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x0e238b7507a47b1916dc835606651d6df317b966eeb0f11da29f6fe547ef1c92",
    "signature": "0xe7ea94090f7d5a773a911bab64433af9165b3aa5c4ab9a002a21655fab03cae81290c9900dc3f8e4d83eb90240f8430c880eafae68050bf38302213d9dd6ad091c",
    "signer": "0x02983e961DC3432C2378361f2AF43F27CC947619",
    "userId": "678485749"
  }
}