{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "808512351",
    "entityType": "User",
    "nonce": "0x2b3f8a59f20263929d7d7abc837fce52a53f56da9d0a3908b97d54f11fd9f173",
    "signature": "0x4652f5ccaafb4b8a3f53db8ace307a5bad947a412927c48074c332364fcb8775760f3f7a0f38533a112350163f5af5f5590b716332400e079050ce16bb7df5791c",
    "signer": "0xfC070d9d02c152146e3D1B2cD4B03FD7a3CA1AB0",
    "userId": "539537193"
  }
}