{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2875da94bf48a13f43573b92621c3397ec4bb1cf1f01c1f43c10a06751edfb4b",
    "signature": "0x6f632530ceb6143e33c1eaf9706c40843593e376a115f1fd9927f224070a5e104e03718b93602f95b8b17efb77011db517f042681c0116593dc87efc1581f6741c",
    "signer": "0xcE57ECc1276b3cfA893B7A9D2501831aDf34C99B",
    "userId": "634585883"
  }
}