{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "192229984",
    "entityType": "User",
    "nonce": "0xe9c690641179c25a158cd56e3b37c419e1256d2e23a2ab6f2c54b73ba747bd5c",
    "signature": "0x4f4f547870867225b1c794ae3fbdd81ee5234aa11e675e7cf72b037ebc11bdc208ea7e110d6f3da767dc9897be22250950261062dfdd9eaafca9fb3365f27ceb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}