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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2905110472c693e192884b8e00070601711b701ba836591293b737ad58ee4153' 
  AND token = 'lh1F5Dw+e6ViOYLLDTqZmq+l2leu+a/gtkynFnR0nYk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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