{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99494508",
    "entityType": "User",
    "nonce": "0x21460aac6cd36a4e5d8304c0eadb97c9d24303cfbb6f8002c91a55e065a41900",
    "signature": "0x569972b22e79cf468b21d15dcd49e8e76c74ecf90f4894b045deef596afe01416c39a669688a7cb762c5143e4c82b74c815328e2806300b9d88e72c2571711e11c",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}