{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "113",
    "entityType": "User",
    "nonce": "0xc138714f4d69feabaa0d3b6e96a4e327283c84fe016b43e9d9b3823ffb8556e7",
    "signature": "0x5a5f843962d3c5d906a3b6908b08a502e0154b0a68ef5a3af4e44e92beb8f8d536ab465f1283a24542f33b0f02abaebdb952c02752f5bdc449e4e4d2cd6064c51b",
    "signer": "0xce728805CE8D9389db39C026804151A65D5e8c71",
    "userId": "321430592"
  }
}