{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0x97cf22daaefc2265b861bc99daab84bfe7d2ec3a05d885dbb879f229d7bfe298",
    "signature": "0x7507484dda6d2b0870cb636d0d165933931a3f3b9062ef052c6d30c04b9f1d00640524ad6e60b6092698a673f363ae50562d5537994df4e35b9b6f10b9247c831b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}