{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0x6ae4ecd3ada7835145f49012a88310d47eca992e565042f65ce4e750cc27eabe",
    "signature": "0xbdad20378947cfe1a49a401e53d44530271093bfb66deb6ad8ebfbe3c82391e72b1916a77e25c9e5601d1804e5bceeced7ea387b7851a87ad7dcedcdbfff10d81c",
    "signer": "0x5D012C880480A2E1ab4345f6F374CFf73e040331",
    "userId": "10449019"
  }
}