{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4fb12596da8ce86e5661e886495c9775f6ab4140642a334d831e33374c239365",
    "signature": "0x1b4e8574d6c65f95676034d79a71b24a63f94557137e6e836aa2de94267227843da145d3d8cc18dc6cc9cbb137d4ae28826610034f23bfbdb229c5318423af9d1c",
    "signer": "0x4eB927048dE1707a6DE82989ecF1458B45B9e27c",
    "userId": "117108"
  }
}