{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314470109",
    "entityType": "User",
    "nonce": "0xf72d544a9203ab75bd156ff8e29efce98d7d89edeae41943ac1747c3a961c4bb",
    "signature": "0x76c22e39e2890a9748f62c0098146f37da8853339c47772269fbe5db7d34fe946688cfa52b2b341520e5a37b3dd780089461d3603b7939de73f0aaf49a6ea5bc1c",
    "signer": "0x858Be7885D181415aF81b736714608bbff4936d2",
    "userId": "357460890"
  }
}