Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '145f20cd501b61b62e3b1c6af9bb6aa280475a1091cc373b2f91dda4ce4be35b' 
  AND token = 'dXHsucw0N+BL6TCCvqw56bSCqgcXjlMcwFGCsOmFhvk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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