{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x134e9e7e27740f57acae1396b2c0d8514ecd37b2e668f00c20f215a063454c3c",
    "signature": "0xcc0bde32cd083b04ce29365ce4205e874498c69228eb3e10d1542b1a2d132b292ea36215adbc19103e6ff70d8946bd14845c9acea0dbff69963628f5a4337b871c",
    "signer": "0xdA4448A94942BB1d74B134dAe4e71F0A65E8a180",
    "userId": "669480134"
  }
}