{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x6d9b100ae71b07657e218d9cf351b042aab6f07e8ff29a1f7e33ae4349de70b4",
    "signature": "0x3570fa6ee20ded3e0bdd90e5c5500ac595a293aa379745ea0053bad889bd6dda61f36fc4ce95aadb74c323702962a4e731cad4608c5f80afbf1c5687fab658e91c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}