Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13740c947b647b11ff511de54b451b8febcf6753ca5e512702e8cf7bf4f3fcb0' 
  AND token = 'tqZtP0zDfmXvh4wYAUHkMwqoSXvSy37IyXdke60toSw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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