{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9530f1c07da357fedfe9077f6f8a7c341258d879d5088865f744d11f33fb3477",
    "signature": "0x05b07ea2583cdb1cc9274235dac7c5c52468086ecb2d00f333052b057f4548e120c48b1cdaf85da8b35f4d1a964915159ed553634835b9664dd528bb0302203b1c",
    "signer": "0x5Bc05b706D3864d34607f61EB1cb128EEf4453b8",
    "userId": "673773101"
  }
}