{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "764650114",
    "entityType": "User",
    "nonce": "0x3561d2bb56ee41b2f4c3e6f4c0c835607799c98509dc8bbaecc6f2ce05f622cc",
    "signature": "0x3ffcabcd65c8bbf5494111df9a71933558305ef06594e958b0f96042aa0463a36fb2f0b033081f2468f79442d7c508b7a575222c686b138fe3471b41bfcd89591c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}