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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '113bbb0ee8dd5feb07ccb1e96a7a23ec8d3c213647bfe60f6e70c4ca7ca88e7a' 
  AND token = 'J3+KrtwXsKb4/+C+p1d0juanmNhmpVS6qVV4ee1vxUA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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