{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967908042",
    "entityType": "User",
    "nonce": "0x9de5692856d2e5c7669aea8de11f6d5752e0a7f8f64f4cd9eee4d9e5f4398c86",
    "signature": "0xcba03f81947cd78e5562ca4b485fbe63761e922ef65ff1a50ebe738fc0db5bb634ef77f63f9d55bca8c60cd1fc793712307afd0c6f5e71c80bbb4bf3e55135d41b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}