{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175816",
    "entityType": "User",
    "nonce": "0x2a83f9ad397927ddf795cc9d0db48073aec88d9ae5e79a126849d8d088213917",
    "signature": "0xab0566169b4939ea6afd5c94f3196bb03e67e627546f7cbcf7a52a45fb30f0074d3bf034800fdb881acbe3ece3da8466a05ca42ebdae9967469a77de3a21ccdc1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}