{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "900247810",
    "entityType": "User",
    "nonce": "0xaf46b7a3330e2c5c727c79c69036667b3baddf5f1eb8c5ca91c3946be5ffc0f4",
    "signature": "0x126abce5f493edf6c3aa476eb76b8b5782404e5e12b583ef112baa2aa67779134ef7243854ed57913394373f6a9317ea8228ac8be8d53eb278cbe03734335fb41b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}