{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "894582993",
    "entityType": "User",
    "nonce": "0x67ddbcc13aa14974b427abb61ceaad8070514767f35e8e92b65300bef9ff05fb",
    "signature": "0x09c8c6a26db0da568ebdaf88fb3d9223944212f0581c9c9d1f8d8169fb46fe3755db41e70ff4a272d5d670059a4ee280915cf7709b2f2d63791dedad67dbe5fa1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}