{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15642",
    "entityType": "User",
    "nonce": "0x6ce4490df2fcccb33388397a5f0324bc84f27178eb79bb71813bd10c4f5d5dc8",
    "signature": "0xa474efdd267a8ffa0907250b748da5f4b6d5398cb083d21cf88c961d35c87b4e4f347fcb10f21d35f79a03cdb9cbdda220e893c1953e36eec0a7c4915e65c8c51b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}