{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x7980989f9c91c07a75de53b4c025a8a7ead644fbed47ebe3f983ea83d1285615",
    "signature": "0xaa61045ed726a509ad0eb8adb53f911e5ed1f630fad02b9312da34c84d8489db3625d1aaebd44889ac7ae744932be93e6adddd14c2a2f5ec5f34f955a0d3297f1c",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}