{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "779855",
    "entityType": "User",
    "nonce": "0x41e2579529a86917e93b3db3186ce63c2d0b6ab449cf510048e9093b92bd3d4d",
    "signature": "0xe1a87abba3ea9238ecdf94a561dc7737fa3f62be20bc65a96e2573af80698f82344c657c9fcb1b17aa87b388a8a40c4eebcdee729fc21d0d01cdcddddf1526a51b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}