{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc3c3f54fe824ba24e6ae431e631c7be825e37e0a71f9e410280d59bce2af64af",
    "signature": "0xa98362704d18e49391337162d041d8309f997d3f925f4764d13333a98a5f0b436f726b1ff0fe5ff0a3f4dfcaf366dc88bb192d9dff8d7f1c8ad24af2bb675b491c",
    "signer": "0x7484CfBecBcdF6Cf4920CCee5d5A0B165C2187cC",
    "userId": "423895393"
  }
}