{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x6dd11fe64366506a38da2593363035adb8d037aba6bb3c8df96c5f3825ecc3b5",
    "signature": "0x0fc6358cb75001a4143668d0ffbce7ea7ca3a5e85e14db6d7e5591116afc504c67262dc735b9bb4a1574b94fe68804fc2094b3d45f5b3fb4218f708c14dac0501b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}