{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107423806",
    "entityType": "User",
    "nonce": "0x0c5957945167e2a98516e41a0144c8ba4e913a974daaf904c96651941e50657a",
    "signature": "0x4788580575ff1ab8dc872f66d5561472e6631af1458ffe4fd525a5b9b02145695f20df0562ddfca13600afadd53ded57fdefd8a2c8abd0bbbe9dcb663534b3fa1b",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}