{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35251",
    "entityType": "User",
    "nonce": "0x4c7189f3e81daea9bfc5a4b73c1a13dba8dad4d4b7a3c8c7504d23084536af32",
    "signature": "0xfc8c31e6280fb7a4ca21a5e5dc7d86c2b4d20619e14dbc3d62ce531ea73154531e3b1daa8dc48e20916bb06692de6379808ebdce00fa7008eca9d557b53427cb1b",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}