{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0xdd6cc711e57d82e217b046feee41bb08ccea384a54bf0e6dbdba2f9f637adf85",
    "signature": "0xc7d0803676bce060d34923944e1b208b2f80ae5e36b863e9819235aa303a5a325424a4e5e106f097cc2c0b872c1a0ace377c6f81241ecf88df14a2c303d25bbb1c",
    "signer": "0x7a991F28f8c946030bE26Eb8408414771247985d",
    "userId": "514559071"
  }
}