Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'ad87cbbf13a7e3f4bc1c439a6ab6b5aeba988a9d6def0638973184f60659c620' 
  AND token = '7DBMsZ+51g+uDI8kg2nsTXFbd1p3Q300Bihho61w8Po=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}