{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x4391d73a060fac138c50d870cd0e220de3b9d9bb39686482ff9f8b9c0a1bf2c0",
    "signature": "0xbfd8fe6ce53a0990178933491222bcc6b1136ac453a866553dd111e473b54d855a033c7f0927da60f05ca2f711aeab275a896519ba727c0ebc27bf9c99542dec1b",
    "signer": "0x53adF2804c4b0caF62EE0Cb2f679c7e108930bC5",
    "userId": "806027782"
  }
}