{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87284",
    "entityType": "User",
    "nonce": "0xa0112d77dbc3ae6a439e2e9beb981bfd122975550693ccf1c5f8810b265178f8",
    "signature": "0x51be3a806031c6112f404018a34ddac2408c8a385fbf4684bdfa57c2b89afa3d05bf21d7dc129fcd30a9426403fb42f86014b1157c560e18a3e56aff56ff7ed11b",
    "signer": "0x12EaF77464824447aA995e75Dd707B3e5246be9C",
    "userId": "409175645"
  }
}