Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '16c95fc2292cb7843305c7ec7428d10c16c8049552cbcc138ca055cbd98774b1' 
  AND token = 'oMMRPvDwakNyxqi+cr7cfR647uMBrZOsZjWhsR/70WU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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