{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "838777725",
    "entityType": "User",
    "nonce": "0xfd6af68ffbea7a9deb6a1966c5cce27623225469245a79ce95ba83a9ec6ab06a",
    "signature": "0x14ad5be83fc26c2cb4448fc7aa2705f874b7eefd0fab40eb3141773dde71fe8e5e6f361947a224fbffcf9aed424e1bcec2d769b4cc089b91307a8d3a6b9d1f9e1c",
    "signer": "0x1011297FAB27Cd869ba8313983bF4793AB784705",
    "userId": "540848139"
  }
}