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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0ab95d60192b0bbaa27a8b3264d6ba1e216102f3aac7366cab89b5126a59fdae' 
  AND token = '5o7Vo76rRc/ItGW7dxBD2VfsVz4h+RpK96HMv/7HLC4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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