{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76873",
    "entityType": "User",
    "nonce": "0xb68a55c1358fbd79d2d9a1628e67d0f91a74d7dc5a67a37eb536dfffc44bf403",
    "signature": "0xd39dff0ee375feff09c00c1ba271519133a3b8827ffbd30e67ba85a262390ae556dc64f368d3138ca0f76c9208d54210632e8f24b37ec4369a46fe10f73d94cb1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}