{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190064640",
    "entityType": "User",
    "nonce": "0xa8f678c30514700e6362818de27fdf85a113701476a5c5d8722f2cdeae5125c0",
    "signature": "0x873f68d19ad535ef149120ff5713bb3b26a353864d8c924eddc12839887562bf49851cea4d0c3c3c3de2e6ff0376f225c19146e896e8d26d952992951328ab9c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}