{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1746162",
    "entityType": "User",
    "nonce": "0xf7c7b0f9c2ea413a912ca8f07f9e36314cf353e2dc0036030733986beb367799",
    "signature": "0xcbe8c202c818a75759bd9941e56eb3040513f941f6cdd10ac015e83a57693fb54beeb198d02c229a5a39d75f47cb121651bbdd4274116dbba9f6091bdf1a2a171b",
    "signer": "0xb9160bee52F73DAB98D7cB3210d24Be59194CaC4",
    "userId": "319969"
  }
}