Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'be2982e6a53665af4bdfc1330f0a485ca44aa7fbfa5809a5a756cf8f06717869' 
  AND token = 'LOwxw4S+B9oRNmlraitpD4BahwMPfBIKPKNo3jvnDCo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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