{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395219571",
    "entityType": "User",
    "nonce": "0x78306f55261a1d79e7804049fd34bd921db88d2e69210c43f4b8a6692f4d919b",
    "signature": "0x87133d3c2c244c749b5920185ce1ec68d02f343aa5b88a70269e4eb54393c1e5612ca093b0f9bc2b42324822bf5b6236545423097c266594ae6219c0dd685bba1c",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}