{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200945",
    "entityType": "User",
    "nonce": "0x28f91c90323ada7666724c7e2afaf73c721d6064c43c54b5dbd9e03249eb937c",
    "signature": "0x6d79eb661a266437e2b4b0460162b5d3958b6867c2876a2b38e8a3392c5446235c356cb654028534048298a5dd943da071446d383fcc837b589834e94fe10d261b",
    "signer": "0x2b4664d9E28380466C2B17959303f1C6E188Ab86",
    "userId": "800744597"
  }
}