Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '48aa6bb0e3de76f2a1e90e0e1f37630c84e91b8e2a391c753577ff08bafb87f9' 
  AND token = 'AQv5O8zm9umosJ58DAC+PWQHkqNIBZJd7DgURSdeNX8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}