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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d14c8b5616de5b50bf04b2cc3495969526974cc9870cf4aa707e475b01406fd' 
  AND token = 'bDU5k8vrPX62eiq+4aa2WY7/4e2jt4+MRHYXPZo5w+s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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