{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "360621402",
    "entityType": "User",
    "nonce": "0x641bb66c4c6423ef180d1fa96675d2ce320c150c6b61441af5ffdd6600a5544d",
    "signature": "0x4a107a04f3a12f37764c6cb8f6985b1d610a762cac87ca00a9f28982692f322a6cfd95de06d127b5167bcf14f6157c64957d8a3f49a1c439149000736390e9331c",
    "signer": "0x3B72fa667D52755CcB53B3815f3be52AD038A577",
    "userId": "211024156"
  }
}