{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "662251356",
    "entityType": "User",
    "nonce": "0x6473a4df12e1a292ac3bb86c7baff96df2a5f4f56f5d15128160460ecf2e2772",
    "signature": "0x6ec5f863e97984d9dfc789b7054a4800072cc836c141423e5baddd8ec7b67c753c4a99936a6e765ba26abccd067bfce8418703aa78da720d3df605389b90c2ac1b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}