{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2703",
    "entityType": "User",
    "nonce": "0x672cd3e00f9cf561913d834826e942dcfccadfe5f345572ffd5ff59d125c147d",
    "signature": "0x6094c00a0413244189b8b26b108b989526523dbe675eaf1003d3ad5e0a9c698834d069b0c3daa6e35378e2b328a52ba12bc4a2b7830b39ad284da0397c6889fe1b",
    "signer": "0xcb0dE1B9981e7D13931d9DDcB14a7597369392B4",
    "userId": "121885"
  }
}