{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12673",
    "entityType": "User",
    "nonce": "0x490ad67f6630844763c5692664d08fc2a19ad8675da8739b4dd4d4155fdbb2bd",
    "signature": "0xc687511caad971192961dbc48fe36b80587db88a65d70a013398bead001e120f3882eb041d45323fdafe34532a76b5938817a512b93357919a1f5e342d7d4ebc1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}