{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398082373",
    "entityType": "User",
    "nonce": "0x38b22eeb08529ee45709a103a3cb6d314db1a763bb4296a1b54831825799eded",
    "signature": "0xb7f44fe92ae13cb402dab96013850686fd3eb523b1b857c35c1448b42e9c97ae13d8e69c0750c36ef125fdd1e7e63fdc1369373a200b7f559f80150f96a284b51c",
    "signer": "0xD71D6a61b797d5436c8d291306fd7DbCe6257Cc2",
    "userId": "117522"
  }
}