Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95186301f593d759c067edfe17035350c42279af55a133adfa380dab701c4290' 
  AND token = '/4Afx7SrX0l/5gogU+FLA3i3U4z6KMZgNgMGwsd0424=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00053

JSON explain

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