Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '02015a25f8fe90050b541b214ef3bf3064b260d07cc6ac5cd794ccc3af86f007' 
  AND token = 'kXMwevBKBGkbitQULhZpXbcK3UToi3aNaPf6+XJhnjg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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