{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x94b5c21e1027fb25a6c9de3551f077d3261f4e68c9577f4482eaa7feb7aa25da",
    "signature": "0x36b0f6d5339daa01c7b6b74a941f58f7676490b09a5641d16c8f6eb69f87c40171c282af6ab36d281ed080e965e4ad74a8e5606abce5b8fcf2741536fa7c2b711b",
    "signer": "0x5eCCC3Ca0b27d770EDa390d690985A1D81802ea2",
    "userId": "837401412"
  }
}