Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '238e4e711effca5429b27c4e4adf3ed9aa6f47d0215cecdb0d60af978b405bde' 
  AND token = 'SwXKRraEt6RyCu70Tu2caRDR3KyZQvjSaIo3gkwDmzo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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