{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49399",
    "entityType": "User",
    "nonce": "0xef529e8cf083573ea76b48b76b01590f4cdbea27810abfceab2f1c2fe9ab0556",
    "signature": "0xffe51df6fb103ae32b6e365ccfa1bd160d0fae806baacad0906b5ceb0ebce24a67180b09b58a90b2e4ae3a8390e2b20440c61c3876ad2d9618d2ac0d414be45c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}