{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77214",
    "entityType": "User",
    "nonce": "0xc546c853fa3c9c6f1f9bb7d74ee4573b5fd6334cdceaa6427561cce4b067ddbd",
    "signature": "0x812403d3f2d19850d41db9cab434f8e62097bd70b3635535c8cdc4cb6ad6fb806b0774dc0dc843d57858d25b1410621dc756997bc51e63fafca752b5f9cf460e1c",
    "signer": "0x9c320C2f7A61EF6f1f62d2eB1a8D2c30dBc29c24",
    "userId": "543327273"
  }
}