{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4ac2c25dde567ec26108be9b3f1f243f4c460cfbe0bf25dc934695bd0e5831a8",
    "signature": "0x653981dd603924ce61083c6b13bfad4a5622adebc6be9d26ced392ecdf7cae7e6d97875e2f49b7383c7b9619a8a9cee11e145cd0ee9be0e7650587737c1a864b1b",
    "signer": "0xc7ea8458d0f1B039aB1943C3Aa7889a9d40e060D",
    "userId": "684026832"
  }
}