Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '087fb80c5ab92678f396788b358bdf576fbdfaabaaa793c1ed74954bc1804cc7' 
  AND token = 'X53HEzERqNnTyJirLp70JOUPV5gat3llxFoDDx44wMs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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