{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x2bceb0f849f688121c134197dc60809ce7e879d1028157b95e681c1229529138",
    "signature": "0x28c39cdad0f9322d9ff5182aaa1a93753288beddcc158df97a85998b21f9724e2c69d9296e113c5c24b4a2162d713ca3f1554549db6533b70a9b506724747d441b",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}