{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1708595",
    "entityType": "User",
    "nonce": "0x4196cb27ac987ca03451aaee20f6e89ba74f21ec2fd49c8f726162a6c394b445",
    "signature": "0x9bea30b8ae6e82e8b97a92ad1238f69013426deb2ae1fc5208059bb3bee436af2a23af761b126919cf73fc8043235d495b1ff8e70ecd9846afb5e896a5e76c2b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}