{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "800871513",
    "entityType": "User",
    "nonce": "0x86e5e080f4c87e548f32abbe01f12ab018e1399f451ee4c4cb6e523e4f875eca",
    "signature": "0x02d6811718c2ad43cd04f871b6c4309bac146f37c9a78a32f3037be6a05c42c63c849d330c78e73984508dd467e903ddefb26c542eb6e4d10f7ba1e3d5f9be281b",
    "signer": "0xf955397B294667924e7Bb7F0242060CE42339111",
    "userId": "142071420"
  }
}