{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77436",
    "entityType": "User",
    "nonce": "0xcf15d1c3517de22017e67c8e57845aa3e08da0ba3d530914dafe6b5d6afd7050",
    "signature": "0xca35626bc430eb9d1e13f204e7d30efece4101d0f05fd3263a8e89456bc503da1a8016ad2eb0b2f00ead446a04846a7202ae649cbc731df7f00b1e0fffc697871c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}