{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30125",
    "entityType": "User",
    "nonce": "0x32827057af649d7b80b8b85305b6ccc33fbab9f499a2e9dac8cca76082a47399",
    "signature": "0xa38589b9a931d561360f023ae878711d7d92e0eace716a6015a51378cb8322c246568a86d50eddcfa732f5b9daf5500c52d55b830638d1cf478a1c6fd2c3c2d91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}