Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ab446dd066b90db41a770e517355de9990bf4e2cb8ac0fbf7732e6034eacc2a4' 
  AND token = 'ZBQs/7+QbnXu27uyYM3PdG8tJwa3zwuRvIfTM/J4n6Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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