Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fe28394c3dd2e333f743b63854f293dd6da5434f5331ca39057baa3981040ba2' 
  AND token = '5N6jjpxpLVD9Bk+87MDxvU8ARDJWolpwfHntmCec64s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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