Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8f6312a1d94554a86ad42495bf3733369e4c75c79e6e6b70a62a098976f72d7e' 
  AND token = 'bxSUj/6AvFuRo6BzB1/0MCU55h9iX31FlTD7CIqHRe8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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