{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x6846fec229338b9553a06343c2f20a013e0d273fa9a93dd6f6bf092f113b6816",
    "signature": "0xa8f287c4edaf71554ef05f1defc17d2f4925fe6c4632d67b70f629fc4892a74a6ab3fa60305c79902f9999d6a44a6c1999920aa16a0750863deb1b602bd863551c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}