{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1363771",
    "entityType": "User",
    "nonce": "0x0f1cadffc07779d5cdde89ec77b43e18e493e87e9d1aa8c3d737b531d4ec6cfc",
    "signature": "0x192b3ec216eb4f99fe04580a1364334ec287bfc5218d14caaaeadeaa7c0ea16e013bee14e1d1dc2051be0fb11342f824d8014610599a59a3f24a41ccd46ef5811c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}