{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "680566462",
    "entityType": "User",
    "nonce": "0xd8e63f9699b72f7dc90c421d243ac66c2390b63d3d52e02dd6a5ad897007f7cb",
    "signature": "0x613d3f5f980ba1044d9a7dd95837ee2e90f105aeac2def48a8b9a28d586a48c017285c87af7ff01884bbd2a5c940b01638d0a6c895cbf723c381ff691a0a1a391b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}