{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "479619",
    "entityType": "User",
    "nonce": "0x17a849b6accd9205b5e9f02ade854bfa7b92ace2dad3029451240aa272f01f3c",
    "signature": "0x44bbaf45403c5cb788b1c1a4111a21deed58a113ebb41051305cac7f8a49e39d2ea2642e71dbaa2b0b730b18c202673b1b1ff7cbe17fa7f8d4855fa7ff3af6ca1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}