{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xfb14d0c51678791f8dd26c225d4d82fafa6cc741afd890bb1391ce52b26d72e9",
    "signature": "0xe6ff3f083f0cb895c456065955c6a8897858eeaf4917ca6c9b5102305b3bce2a6b83d97bed3e61ddd02b105c2e333041b1b5e3b489258786821141b26627b68e1c",
    "signer": "0x48997477d821e30d3Fa835d1Ee7809B3253Cb100",
    "userId": "75085"
  }
}