{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326049483",
    "entityType": "User",
    "nonce": "0x6f4a564e921f91326dd6dc53c7c4409268d8b7a1a616db0e6b90868880c90a55",
    "signature": "0xc3f9951a660a45c2b7a6e29e4d2e89db3a91dc0f61d1af93020c27b63d9c9b606c4436bc4d61a77e7e6e1ab726827d5d84fa5dddb1491438c1e810d059187bc31b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}