{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330824499",
    "entityType": "User",
    "nonce": "0x8d6ed5a8c129baebf7f41b34984763012aed957488c5e3864e13231a8fcbf58c",
    "signature": "0x28b3f66c133b77fdc299956ae0f57cbbfd7eef8a1ae850b3b5baaa717af1e99d1d60592a7a6574fa8b7f6d8d3c928f6a39412b593781aa8d2fc58761f0d8ba261b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}