{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xade09f827d61bfee43268c942a530af55c02523a5e246d1bdaae504b16e6c052",
    "signature": "0x6fc70bb1609d803ed4b83f40bef474b562aa35bdca02786689efbe651e2e1034704ebc9be05b910a04a53d6dcf7056392ba91bdebf7bd3de66427ae04605a9711c",
    "signer": "0x6159c95cFF5F68A8C5480982647CA1D60b9d5D57",
    "userId": "497077653"
  }
}