{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "694396632",
    "entityType": "User",
    "nonce": "0x37cf6c36b6726991049946b71f8e098650167fad8f15567ad67301ec70fc2f7c",
    "signature": "0xc02706168fe656188bc2d555e10964983dc13f63344c75890c0ecdd449a541bb52094a5e93e98ddef0c62069f2f7f5e62345041e0f4eb10576e719d3d8298a7c1c",
    "signer": "0x14A55CAAD52a18f76025A94865ce06ED8A0Ea2cC",
    "userId": "653598798"
  }
}