{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "22505",
    "entityType": "User",
    "nonce": "0x2df3f769d3ea0adb5b4ea502835ec918328ff97b5de4aefcbb0f987188f40379",
    "signature": "0x64aa0afa302429a7fd19366e278dc760fcbb6b734ed0d83fac421df9892631b97b1874634aa1b9b31f83e4ab98c172d923a511056213d7b14e51558f7723879e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}