Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6272713a41e08e1bf4283ca59ad15eb34cb800cacce6e10478d479a0680774d5' 
  AND token = 'sGSRfdNWgfnyBAxF4k6V+ERmMAXg3S9eCRk5VOIZNVo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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