{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x1f5e538b27b062918e5b58093480fa541801b948571e3fb7a7f9a1fc582872c1",
    "signature": "0x0a95cb90e7aabdba6cc245f93c04e79936ec7ed55b7868afc663501cb20e1be52176835bd642d365d3b12cf3e81438726f84dc218769f12f311eada39057fc801b",
    "signer": "0x5Af531A9cDF9747df40f57531227d70F1bdD2ed7",
    "userId": "511108744"
  }
}