Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd7150c378306a0b4d7f214287926a82562ba9eef70b7bd7cf1dba8ec51ebe265' 
  AND token = 'MrRb2Zqp8vo5ifM6CLg/MBlsikltW0/UoDK1hgBzItE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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