{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1894938",
    "entityType": "User",
    "nonce": "0x1b537575da780aa3fe1327775b4f034dc907cd17d2b1358d6b5afb4ed0db7f32",
    "signature": "0x7ff1d4b4d3a48bef1df0cdf8bc705cfc87c206d4b56a715ddd62d236176c276f28b175f574cdfb160e94502726b09bc59464a27e90c6fd74f6353eac807202e31c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}