{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283329846",
    "entityType": "User",
    "nonce": "0x2c628ea7b1232e29e250f8d0b63d663992e333ea6c3a66cef1dba5016d18d52f",
    "signature": "0x59e586eae02e24ce819dda8f81a62a6853e0ef09d01111f61d23731cdad33a36715da9bde2c5d8a15d2ccc90ef9ea76c69fc1d1b6819d40c88019e6d64773eb61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}