{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580956583",
    "entityType": "User",
    "nonce": "0x7396682882d8dfadc284c8b95432246588828ac21cbc3d851c3e1d89d2fa1ef6",
    "signature": "0xde7225a9b60658d7893672f2b4f286e1ba5ba3ffb66816334fb52c09cab8a9f635812c819861204943ab7ccc0f0881816d40117c27240327bdb3cb52b4e067181c",
    "signer": "0x3fE2Ce45ADC65de79b26d2ed5A1E2E49b80D4970",
    "userId": "563191494"
  }
}